Climate averages 1991–2020
Guelma weather
in September.
A hot, moderately wet month: the 4th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Guelma: daytime highs average 29.5°C and nights cool to about 17.2°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 40 mm of rain on roughly 8 days, which makes September a moderately wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 27 min on an average September day.
The nearest other city in this atlas is Souk Ahras (51 km away). In September its highs average 28.2°C, 1.3°C cooler than Guelma, with 48 mm of rain.
Among the 55 cities listed in Algeria, Guelma ranks joint 19th of 55 for the warmest September highs and 48th of 55 for the driest September (rainfall, lowest first). The mean September high of those 55 cities is 29.2°C; Guelma is 0.3°C warmer than that mean.
From September to October, average highs fall by 4.5°C to 25.0°C, and monthly rainfall rises from 40 mm to 58 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Guelma climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 13.9°C3.7°C | 3.7°C | 66 | 10.6 | 10.010 h |
| February | 14.5°C3.9°C | 3.9°C | 60 | 10.2 | 10.811 h |
| March | 17.5°C6.1°C | 6.1°C | 73 | 10.7 | 11.912 h |
| April | 20.4°C8.3°C | 8.3°C | 68 | 10.4 | 13.113 h |
| May | 25.1°C11.9°C | 11.9°C | 53 | 7.9 | 14.114 h |
| June | 30.4°C15.9°C | 15.9°C | 18 | 3.5 | 14.615 h |
| July | 34.6°C18.9°C | 18.9°C | 4.5 | 1.3 | 14.414 h |
| August | 34.7°C19.6°C | 19.6°C | 18 | 3.7 | 13.514 h |
| September, selected | 29.5°C17.2°C | 17.2°C | 40 | 8.0 | 12.412 h |
| October | 25.0°C13.4°C | 13.4°C | 58 | 8.6 | 11.311 h |
| November | 18.8°C8.6°C | 8.6°C | 63 | 9.8 | 10.310 h |
| December | 14.9°C5.2°C | 5.2°C | 61 | 9.5 | 9.710 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
- Souk Ahras in SeptemberAlgeria · 51 kmHigh 28.2°C · Low 16.3°C · 48 mm rain
- Annaba in SeptemberAlgeria · 57 kmHigh 29.5°C · Low 20.5°C · 41 mm rain
- Skikda in SeptemberAlgeria · 65 kmHigh 27.0°C · Low 20.4°C · 34 mm rain
- El Khroub in SeptemberAlgeria · 69 kmHigh 28.8°C · Low 16.4°C · 38 mm rain
- Constantine in SeptemberAlgeria · 73 kmHigh 28.6°C · Low 16.1°C · 31 mm rain
- Aïn Beïda in SeptemberAlgeria · 74 kmHigh 26.6°C · Low 14.8°C · 31 mm rain
- Khenchela in SeptemberAlgeria · 117 kmHigh 26.1°C · Low 14.3°C · 31 mm rain
- Tébessa in SeptemberAlgeria · 133 kmHigh 28.7°C · Low 15.7°C · 38 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Guelma) is explained once on the Guelma year overview and on the Sources, method and limits page.